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34 Cards in this Set

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Integumentary system
provides external covering for protection; regulates the body temp and water content
Cardiovascular system
delivers vital substances throught the body; transports cellular waste products to the lungs and kidneys for excretion
Lymphatic system
helps maintain internal fluid environment; produces some types of blood cells; regulates immunity
Respiratory system
brings oxygen into the body and removes carbon dioxide and some water waste
Nervous system
coordinates the reception of stimuli; transmits emssages to stimulate movement
Endocrine system
secretes hormones andhelps regulate body activities
Transverse section
horizontal- divides body into top and body
Sagittal section
vertical- divides the body into left and right
Coronal (frontal) section
vertical- divides the body into front and back
Developmental anatomy
study of the fertilized egg through adult form
Chemical level
simplest; atoms, molecules, and organelles
Cellular level
cells vary widely in shape and size; all have a unique funtion
Tissue level
groups of similar cells that have a common function
Organ level
at least two tissue types that perform a specific function in the body
Organ system level
organs that work together to accomplish a common purpose
Organ system level
organs that work together to accomplish a common purpose
CT scan
computerized axial tomography; 12 successive x-rays taen in a circle around a single transverse body plane, sectional image; better view of soft structures
DSR scan
dynamic spatial reconstructor; ultrafast CT scan; assembles CT sections into a 3D image & can be rotated from any angle
PET scan
positron emission tomography; formed by detection radioisotopes that are inserted into body; observes metabolic activity
US imaging
ultrasound imaging; uses sound waves that reflect of of body tissues
Describe the plasma membrane
composed of phospholipids, choloesterol, and proteins; encloses cell contents; outer limiting cell membrane
MRI
magnetic resonance imaging; high conrast images of soft tissues; detects levels of hydrogen, thus mostly showing bones
Nucleus
lies newar the cell's center and controls cellular activities
Nucleolus
found within the nucleus, where ribosome units are assembled
Ribosome
small granules composed of proteins and RRNA; two globular subunits resembling an acorn; site of protein synthesis
Endoplasmic reticulum
system of interconnected tubes and parallel membranes enclosing fluid filled cavities; assembles proteins
Mitochondria
threadlike or sausage-shaped membranous organelles; change shape constantly; power plants of cells
Lysosomes
spherical organelles containing digestive enzymes; contains digestie enzymes
Golgi complex
stacked and flattened membranous sacs; modifies concentrates and packages the proteins and lipids made at the rough ER
Peroxisomes
membranous sacs in cytoplasm containing oxidase enzymes that use molecular oxygen to detoxify harmful substances
Cyto-skeleton
cell skeleton, rods running through the cysom, supports cellular structures; provides the machinery to generate various cell movements
Centrioles
minute body found near the nucleus; active in cell division
Flagella
long whip-like extension of the plama membrane; propels the cell; found on bacteria and sperm
Cilia
hair like projections; move substances in one idrection across the cell surface